.navigation-header {
  position: fixed;
  width: 282px;
  height: 173px;
  background: rgba(255, 255, 255, 1);
  box-shadow: 0px 0px 8px rgba(0, 0, 0, 0.16);
  opacity: 1;
  z-index: 10;
}
.book-cover {
  float: left;
  width: 91px;
  height: 118px;
  background: rgba(0, 0, 0, 0);
  box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.4);
  opacity: 0.8;
  position: relative;
  left: 12px;
  top: 14px;
}
.book-title-container {
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  width: 160px;
  height: 30px;
  position: absolute;
  left: 118px;
  bottom: 120px;
}
.book-title {
  height: 30px;
  font-size: 15px;
  line-height: 15px;
  color: rgba(75, 75, 75, 1);
  opacity: 1;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  white-space: normal;
  word-break: keep-all;
  overflow: hidden;
  position: relative;
}
.book-arthur {
  left: 28px;
  top: 56px;
  font-size: 15px;
  line-height: 25px;
  color: rgba(75, 75, 75, 1);
  opacity: 0.5;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
  white-space: normal;
  word-break: keep-all;
  overflow: hidden;
  position: relative;
}

.reading-duration {
  position: absolute;
  left: 118px;
  top: 83px;
  font-size: 14px;
  line-height: 22px;
  color: rgba(75, 75, 75, 1);
}

.book-content-title {
  line-height: 27px;
  /* color: rgba(112, 112, 112, 1); */
  opacity: 1;
  cursor: pointer;
}
.book-bookmark-title {
  line-height: 27px;
  /* color: rgba(217, 217, 217, 1); */
  opacity: 1;
  cursor: pointer;
}
.navigation-body-parent {
  position: absolute;
  top: 173px;
  overflow: hidden;
  width: 100%;
  height: calc(100% - 173px);
}
.navigation-body {
  width: 100%;
  height: 100%;
  padding-right: 17px; /* Increase/decrease this value for cross-browser compatibility */
  box-sizing: content-box;
  overflow-y: scroll;
  z-index: 0;
  overflow-x: hidden;
}
/* .navigation-body::-webkit-scrollbar {
  display: none;
} */
.navigation-panel-empty-bookmark {
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 15px;
  color: rgba(75, 75, 75, 0.8);
  line-height: 60px;
}
.navigation-navigation {
  position: absolute;
  bottom: 0px;
  left: 0px;
  width: 100%;
  display: flex;
  justify-content: space-around;
}
.navigation-panel {
  position: absolute;
  top: 0px;
  left: 0px;
  width: 282px;
  height: 100%;
  background: rgba(255, 255, 255, 1);
  box-shadow: 0px 0px 16px rgba(0, 0, 0, 0.38);
  opacity: 1;
  z-index: 10;
  animation: fade-left 0.2s ease-in-out 0s 1;
}
